Its like say you do an album with nothing but a 101 , 303 , 707 and maybe roland d50 or alpha juno .You get this really distinct and strong character to your music that strangely becomes watered down if you start adding alot of stuff from other synths and even more so when you start adding a mishmash of other instrument character.
This is why so much older electronica sounds so good ( apart form the fact people were more focused on mood back then and musical stuff and much less on eq curves and how they can learn to master the bland results from people so fixated on daw technique )
Human leagues early album

Aphex twin ? same thing - i know for a fact he owns loads of synths and i heard he sets up 2 or 3 for a session and limits himself to certain machines = analord sessions being an example and take ambient works 1 - same thing.A limited pallette but somehow a much stronger flavour.
Its like cooking .
I just started a project with just k1 and cz101 , same thing is happening - this really strong instrument character on every track which i would have lost if i was using everything in the studio.
Anyone else doing this ?